George Zimmerman was arrested Monday after he cocked and pointed a shotgun at his girlfriend, shattered a glass-top table, then pushed her out of the house and barricaded himself inside after she ordered him to move out, according to the Seminole County Sheriff's Office.

He surrendered peacefully a few minutes later and was hauled off to jail, where he was being held without bail on domestic-violence and aggravated-assault charges.

It was the second time in three months that the former Neighborhood Watch volunteer, who was acquitted of murdering 17-year-old Trayvon Martin, was handcuffed after being accused of domestic violence and threatening a woman with a gun.

In a September blowup with his estranged wife, police filed no charges. This time, authorities did not buy his story, one that he quickly got into public circulation.

While deputies were outside, banging on the door, trying to get him to come out, Zimmerman called 911 and blamed Monday's dispute on his girlfriend, 27-year-old Samantha Scheibe, whom he said had "gone crazy on me."

The couple had been living together in the home she rented on Topfield Court near Apopka since August, said Seminole County Chief Deputy Dennis Lemma.

Scheibe was pregnant, Zimmerman told the dispatcher, and had decided to raise the child on her own. He wanted the parting to be peaceful, he said, and began packing, including a bag in which he had placed guns, but Scheibe then went out of control, he told a dispatcher.

"She just started smashing stuff, taking stuff that belonged to me," he said.

While he was still giving his version of events to a dispatcher, deputies unlocked the door, forced aside furniture that he had used to barricade himself inside and took him into custody, Lemma said.

Lemma said Scheibe is not pregnant.

Zimmerman was locked in a one-man cell at the Seminole County Jail and is to appear Tuesday at 1:30 p.m. before Seminole County Judge Fred Schott, who must decide whether there is enough evidence to support his arrest and whether Zimmerman should be released on bail.

In addition to the aggravated assault with a weapon, a felony, he's accused of domestic-violence battery and criminal mischief — for breaking the table and damaging other property belonging to Scheibe.

Chris White, chief of operations for the State Attorney's Office in Sanford, said that if the judge agrees to release Zimmerman, his office would ask that he be barred from possessing guns.

Lemma said his office would ask that Zimmerman be placed on a satellite monitoring device if released.

Scheibe told a dispatcher there were four guns in the house: Zimmerman's shotgun, an assault rifle and two handguns.

Zimmerman has a concealed-weapons permit.

At a 5 p.m. news conference, Lemma said his deputies were awaiting a search warrant for the house and expected to find two guns. He did not elaborate.

By the time deputies got inside about 1 p.m., Zimmerman was not armed, Lemma said, and offered no resistance.

In her 911 call to authorities, Scheibe was emotional.

"I need police right now," she said. "He's in my house breaking all my (stuff) because I asked him to leave. He has his fricking gun breaking all of my stuff right now," she said, then, apparently turning to Zimmerman. "This is not your house. Get out of my house, Do not push me out of my house."

Scheibe admitted to deputies that she had begun carrying Zimmerman's belongings into the living room and hauled some outside.

According to his arrest report, after she told him she was going to call police, "Zimmerman then pointed the shotgun at Scheibe for a minute and asked her if she really wanted to do that."

Zimmerman then smashed the glass table with the butt of his shotgun, pushed her outside and locked the door, the report said. No one was injured.

This is the third domestic-violence incident involving Zimmerman.

In 2005, he and his live-in girlfriend got domestic-violence injunctions against each other. In an interview with FBI agents last year as part of the Trayvon Martin murder investigation, that woman described Zimmerman as "protective and territorial" and "having a bad temper."

On Sept. 9, he was handcuffed by Lake Mary police but released after his estranged wife, Shellie, and her father accused him of threatening them with a gun while they were moving her belongings out of a house the couple had shared until Shellie Zimmerman filed for divorce.

Zimmerman had arrived at that scene with Scheibe.

Last week, Lake Mary police officially closed that case, saying they had no solid evidence that Zimmerman had broken the law.

When they searched Zimmerman that afternoon, he had no gun, but Scheibe told police that day that the couple was in lawful possession of guns in their vehicle.

According to Linked In, a job-networking website, Scheibe is a self-employed environmental services expert.

According to Shawn Vincent, a spokesman for defense attorney Mark O'Mara, "Mark O'Mara is not representing George Zimmerman in today's matter," won't represent him in any other new criminal complaints and "as such, it is not appropriate for him to make any comment."